Income Taxes (Details)	6 Months Ended
Jun. 30, 2012
Income Taxes [Abstract]
Period of time for IRS enforced limitation of NOL carryforward on company after an ownership change	3 years
Percentage points of the market value, minimum (in hundredths)	50.00%

Refers to the period of time with limitations on the use of net operating loss if company undergoes an ownership change of more than 50 percentage points of the market value by certain stockholders or public groups.

No definition available.

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Namespace Prefix:	cytr_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration